Inorganic Chemicals Industry ›› 2024, Vol. 56 ›› Issue (1): 141-148.doi: 10.19964/j.issn.1006-4990.2023-0192
• Catalytic Materials • Previous Articles
JIN Shengshi1,2(), LIU Kaijie2, LIU Qiuwen2, ZHANG Yibo1,2(), YANG Xiangguang1,2()
Received:
2023-04-03
Online:
2024-01-10
Published:
2024-01-18
Contact:
ZHANG Yibo, YANG Xiangguang
E-mail:jss20@gia.cas.cn;yibozhang@gia.cas.cn;xgyang@gia.cas.cn
CLC Number:
JIN Shengshi, LIU Kaijie, LIU Qiuwen, ZHANG Yibo, YANG Xiangguang. Study on catalytic performance of phosphoric acid modified CeO2 nanorod supported Pt catalyst for propane combustion[J]. Inorganic Chemicals Industry, 2024, 56(1): 141-148.
Table 1
Pt dispersion and size of 1%Pt/CeO2 and1%Pt/CeO2-yPOx catalysts measured by CO pulse test"
催化剂 | CO滴定量/cm3 | n(Pt)/ mol | 分散度/ % | 铂粒径/nm |
---|---|---|---|---|
1%Pt/CeO2 | 0.083 | 5.04×10-6 | 73.60 | 2.57 |
1%Pt/CeO2-0.01POx | 0.079 | 5.07×10-6 | 69.40 | 2.73 |
1%Pt/CeO2-0.03POx | 0.075 | 5.13×10-6 | 65.50 | 2.89 |
1%Pt/CeO2-0.05POx | 0.071 | 5.23×10-6 | 60.40 | 3.14 |
1%Pt/CeO2-0.07POx | 0.065 | 5.20×10-6 | 55.60 | 3.41 |
1%Pt/CeO2-0.10POx | 0.053 | 4.78×10-6 | 49.20 | 3.85 |
1%Pt/CeO2-0.15POx | 0.046 | 4.83×10-6 | 42.40 | 4.47 |
1%Pt/CeO2-0.20POx | 0.030 | 4.93×10-6 | 27.30 | 6.94 |
Table 2
Ratios of Ce3+ and Ce4+ on surface of 1%Pt/CeO2and 1%Pt/CeO2-yPOx catalysts"
催化剂 | 峰面积占比/% | |
---|---|---|
Ce3+ | Ce4+ | |
1%Pt/CeO2 | 23.11 | 76.89 |
1%Pt/CeO2-0.01POx | 19.80 | 80.20 |
1%Pt/CeO2-0.03POx | 20.18 | 79.82 |
1%Pt/CeO2-0.05POx | 19.23 | 80.77 |
1%Pt/CeO2-0.07POx | 21.40 | 78.60 |
1%Pt/CeO2-0.10POx | 23.78 | 76.22 |
1%Pt/CeO2-0.15POx | 24.71 | 75.29 |
1%Pt/CeO2-0.20POx | 25.90 | 74.10 |
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